基于计算流体动力学方法的两栖飞机规则波中运动特性研究  

Research on the take-off motion characteristics of amphibious aircraft in regular waves based on the computational fluid dynamics method

作　　者：胡开业[1] 石林飞 周辉 毛丽君 HU Kaiye;SHI Linfei;ZHOU Hui;MAO Lijun(College of Shipbuilding Engineering,Harbin Engineering University,Harbin 150001,China)

机构地区：[1]哈尔滨工程大学船舶工程学院,黑龙江哈尔滨150001

出　　处：《哈尔滨工程大学学报》2024年第1期44-52,共9页Journal of Harbin Engineering University

基　　金：工业和信息化部民机专项(MJ-2017-F-03)。

摘　　要：针对水陆两栖飞机加速起飞运动过程受波浪干扰问题,本文基于Star-CCM+平台数值模拟技术,引入SST k-ε湍流模型求解RANS方程,VOF方法捕捉自由液面,DFBI模块以及重叠网格技术模拟水上飞机六自由度运动,建立了一套波浪中水陆两栖飞机加速滑行起飞运动特性研究方案。以波长和波高为变量,探讨了加速滑行过程中上述变量对水上飞机升沉、纵摇运动响应以及机身重心处垂向加速度的影响规律。结果表明:随着波长增加,飞机升沉运动先增加后缓慢变化,飞机重心垂向加速度、纵摇角加速度和纵摇峰值集中在波长为2~3倍机身长度海况范围内;随着波高增大,飞机升沉、纵摇运动及重心垂向加速度最大值随之增大,且长波中的运动变化量较短波中更大;机翼气动升力数值模拟结果与计算值一致,该方案可用于水陆两栖飞机气动力相关计算。To address the problem of an amphibious aircraft being disturbed by waves during an accelerated take-off motion,based on the numerical simulation technology of the Star-CCM+platform,we introduce SST k-εturbulence model to solve the RANS equation.We use the VOF method to capture the free surface and apply the DFBI module and overset grid technology to simulate the six-degree-of-freedom motion of a seaplane,thereby establishing a set of research schemes on the characteristics of accelerated taxiing and the take-off movement of an amphibious aircraft in regular waves.Considering wavelength and wave height as variables,we discuss their influence on variables on the heave-and-pitch motion response of the seaplane and the vertical acceleration at the center of gravity of the fuselage during acceleration taxiing.The results show that as the wavelength increases,the heave motion of the aircraft first increases and then changes slowly.The vertical acceleration of the aircraft’s center of gravity,pitch angular acceleration,and pitch peaks are concentrated within the range of the sea state such that the wavelength is 2-3 times the fuselage length.With an increase in the wave height,the maximum value of the aircraft heave,pitch motion,and the vertical acceleration of the center of gravity will increase,and the motion change in the long waves is greater than that in the short waves.The aerodynamic lift of the wing obtained through numerical simulation is consistent with the calculated value.This solution can be used for the correlation calculation of the aerodynamic force of amphibious aircraft.

关 键 词：水陆两栖飞机 纵向稳性 加速运动 计算流体力学 纵摇 升沉 规则波 重叠网格 

分 类 号：U661.3[交通运输工程—船舶及航道工程]